Noisy Buggers in the Post-COVID world

Guest Post by Melody Kemp

In my more bizarre moments, I can imagine the cockpit conversation:

‘Hey Bill, there’s the blue and white house. We turn left here’
‘Bob, Copy. Over.’

Of course, it’s nonsense to think that the complexities of aircraft take-offs and landings would depend on visual cues, rather than complex technology, weather and fuel economy.  In fact, it’s the very technology that allows communities to track and identify aircraft and the noise level as they pass overhead.

But I have to admit that, particularly at night, when I see the queue of aircraft waiting to approach, their starboard and port lights blazing into our living room, it’s hard not to go out and shake an impotent fist at the crew.

As I completed this third paragraph, a Jetstar plane flew overhead. I measured the roar at 76DbA, another app told me it was slightly less than 1000 feet above my roof.  As it continues to descend, it passes over the densely populated parts of the city that follow the Brisbane River, including New Farm and Doomben, well known to race goers. What was that old saying about don’t scare the horses?

I work at home. My concentration and the paragraphs I write, come in lumps divided by the passing of planes. Some, like the Flying Doctor prop-jets, make, in objective terms, little noise (around 58dBA), but if one is sensitised to the noise in general, they become yet another psychological hazard. Evidence for aircraft noise exposure being linked to poorer well-being, lower quality of life, and psychological ill health is reflected by the responses to my questions and Facebook comments posted by concerned residents (some are included below)

Continue reading “Noisy Buggers in the Post-COVID world”

Tinnitus can be a safety hazard

I have tinnitus. There I have outed myself along with 18% of men and 14% of women, according to a research report* from Hearing Research journal published recently. For those unfamiliar with tinnitus it is a persistent buzzing or ringing in one’s ears usually caused by exposure to loud noise. It is relevant to occupational health and safety (OHS) in a number of ways:

  • It needs to be considered in issues of communication
  • Tinnitus can be distracting
  • Tinnitus may be a symptom of poor noise management practices at work.

Human Ear PainThe research study conducted by David Moore and others was focusing on “lifetime leisure music exposure” so workplace noise is mentioned in the report only in passing.

It is common that unless a worker is deaf or seen signing, the default assumption is that everyone’s hearing is undamaged. The research data above shows that the assumption is false.

Login or subscribe to SafetyAtWorkBlog to continue reading.

Just workplace hardship

Yossi Berger writes:

We’re all familiar with the notions of focus and attention, and selective attention.  We’ve all experienced how difficult it can be to attend to target information when background noise is distracting.  The issue can be referred to as the signal-to-noise ratio.

I often find its effects in discussions with managers and workers during workplace inspections.  That is, I hear animated discussions of hazards, of risks, of risk assessments and risk management and various systems and theories.  The conversations over flow with these concepts whilst most of workers’ daily problems aren’t even raised, they don’t reach the level of a signal.

Thankfully in most workplaces, most managers and most workers have not experienced any fatalities.  By far most of them will not have experienced or witnessed a serious injury or serious disease.  Nor have most experienced their local hazards actually seriously hurting anyone.

But most workers will have experienced some dangerous working conditions, mostly not mortally dangerous, but dangerous.  Continue reading “Just workplace hardship”

Volume controls should show decibel levels

Six months ago Pamela Cowan wrote about iPods and policies.  Whilst driving this afternoon I turned down the volume on my car radio (Question Time in Parliament) and I wondered how much I had reduced the volume.  I could not tell as the radio simply has a scale of numbers.

Such a measurement is common.  We have heard of “cranking the amp up to eleven” but what does eleven mean in terms of decibels and, in the context of this blog, the risk of noise-induced hearing loss?

This is also particularly relevant in the discussion about earphones.  The safety warnings that relate to the potential long term damage are all expressed in exposures in decibels.  Yet the volume controls are shown as numbers, lines or a digital bar.  There is no mention of decibels.

Continue reading “Volume controls should show decibel levels”

Australian Noise report. Is anyone listening?

Safe Work Australia has released a very important report called “Occupational Noise-Induced Hearing Loss in Australia “.

The report confirms many of the challenges faced by OHS professionals. There is, among others,

  • An over-reliance on Personal Protective Equipment (PPE)
  • Noise is not taken seriously
  • Effective noise control is undervalued
  • Small and medium-sized companies pay less attention to the hazard
  • Noise control is seen as expensive
  • As hearing damage cannot be repaired, it is seen as inevitable

The report provides a detailed profile of NIHL and many will find the report an invaluable to gaining more attention to control measures in workplaces but just as mental health is both an occupational AND public health matter, so noise is affecting our private lives just as much as it is in our work lives.

As with many government safety reports, change is likely to come not from the report itself but how the media, the community and the OHS professions use the information to affect change.

Kevin Jones

Research review of influenza and noise-induced hearing loss

The Cochrane Library has long been a good source of research information.  Recently, the library undertook reviews of some of the seasonal influenza intervention and have produced a short podcast on the research.

Also, the Library looked at noise-induced hearing loss (NIHL).  The importance of this condition is high due to the damage being irreparable.  In some countries, regular occupational hearing tests are a regulatory requirement in some industries and the research review did find some low-level research that supported hazard control through legislation. The review says

“There is contradictory evidence on the effectiveness of hearing protection and hearing loss prevention programmes. Higher quality prevention programmes and better implementation of legislation are needed.”

There was some support for the efficacy of PPE but training in the proper use of earplugs increased the benefits considerably.  Those readers who are in the mining industry may find the NIHL podcast particularly useful.

These reviews are of  rsearch studies and are not research in themselves, but they are useful summaries of a current state of knowledge on particular matters.  Always look to the original data source if you wish to initiate prevention strategies or, better yet, contact you local OHS regulator and apply for a research grant so that you can generate research that meets the OHS needs of your industry.

Kevin Jones